Daily Sunspot Evaluation
Observation Sheet Wednesday, 19 October 1988
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 9
- Number of spots (f)
- 72
- Relative number (R)
- 162
- Observer
- TS
- Reading
- all checks consistent
- File
- 19881019.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAR – 16 | 23 | 40W | 37 | 41W | 9 | 277 |
| 2 | AX – 1 | 31 | 30W | 27 | 31W | - | 280 |
| 3 | AX – 5 | 21 | 27W | 24 | 28W | 3 | 272 |
| 4 | AX – 2 | 30 | 47E | 310 | 46E | 1 | 281 |
| 5 | FKC – 34 | 22 | 62E | 295 | 61E | 17 | 282 |
| 6 | EKC – 10 | -22 | 70W | 67 | 71W | 14.5 | 275 |
| 7 | HA – 1 | -13 | 69W | 66 | 70W | 2.5 | 276 |
| 8 | HS – 1 | -35 | 31E | 326 | 30E | 2 | 283 |
| 9 | AX – 2 | -13 | 57E | 300 | 56E | 1 | 284 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.